SKU: 73930472279

Ronstan Series 40 BB Block, Fiddle, Cleat

Sale price$72.52 Regular price$80.58
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

Ronstan Series 40 BB Block, Fiddle, CleatProduct Description Ronstan Series 40 BB Block, Fiddle, Cleat Product Information Sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2 stage ball bearing system provides consistent performance over the full load range. Captive Lock universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position. Features

Product Description

Ronstan Series 40 BB Block, Fiddle, Cleat
 
Product Information
 
Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position.
 
Features
  • Low friction Acetal or Torlon® bearing system
  • Lightweight
  • Cheek cut-outs for easy bearing maintenance
  • Captive Lock™ universal head
  • Slotted pin shackle eliminates fouled lines
  • Multi-position cleat arm
Specifications
  • Sheave Ø - 1 9/16 + 15/16 in.
  • Max. Rope Ø - 5/16 in.
  • Pin Ø - 3/16 in.
  • M.W.L. - 770 lb.
  • B.L. - 2200 lb.
  • Weight - 5.5 oz.

Applications

  • Mainsheet
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
  • Typically used in direct 3:1 purchase systems such as mainsheets and boom vangs
  • On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.

Materials

  • Acetal ball bearings
  • UV stabilised Acetal sheave
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fibre reinforced Nylon cheeks
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 73930472279

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4.7 ★★★★★
Based on 30 reviews
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E
Verified Purchase
Emily Ross
Grantham, US
★★★★★ 5
Works great!
Color: Lavender Luxury
Kind of surprising but these actially work and are comfortable. I noticed a difference in my calloused heels after the first use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
C
Verified Purchase
Chris
Dallas, US
★★★★★ 5
Best thing ever!
Color: Lavender Luxury
These are the best thing ever! Put your favorite foot balm on then cover your heels with these socks and go to bed. You’ll wake up with the softest feet and no cracked heels!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
L
Verified Purchase
Lauren Day | Hawaii Mom Life
Belleville, US
★★★★★ 4
Works well if you wear them every day
Color: Lavender Luxury, Color: Lavender Luxury
These heel socks do work, but you need to be consistent and patient. The socks are soft with a gel lining on the inside that basically traps your body heat and moisture—kind of like a mini spa for your feet. My heels felt noticeably softer after just one hour of wearing them. That said, I don’t love sleeping with socks on, so it took me two nights to get used to them. I even took them off the first night because I couldn’t stand the feeling. After five nights of use with nightly exfoliating, my heels are definitely softer, but still cracked in some areas. I’m hoping they keep improving with continued use. If you stick with it and exfoliate regularly, these socks definitely help soften rough skin. Not a miracle fix overnight, but a helpful tool for healing cracked heels.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2025
A
Verified Purchase
Alyssa Marie
Omaha, US
★★★★★ 5
Amazing product
Color: Teal Tranquility
Great product worked within a week of consistent use
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
D
Verified Purchase
Dondra
New York, US
★★★★★ 5
Comfortable
Color: Teal Tranquility
Love these. They do the job!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026

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